Deputation to Christian congregation in Warmbad (concept in Dutch), 1891; sketch of the location of Warmbad with attack and retreat routes of troops in the war, signed by Karl Friedrich Wandres, 1903; ground plan of the mission house, list of inventories, 1913; annual and conference reports, by Hermann Nyhof u. August Karl-Friedrich Rethemeier, 1908-1945; Visitationsberichte, 1909 1912; Grundstücksangelegenheiten, Eigentumsverhältnisse, 1911; Kaufvertrag von Warmbad, 1912; Bau e. Kapelle in Haib, cost estimate, correspondence, 1912-1913; Antrag auf Windmotor u. Wasserleitung, 1913; cost estimate for new construction of the mission house, 1914

Chronicle of the Missionary Station Warmbad, Namaland, Southwest Africa, Missionary Hermann Nyhof, 26 pp., ms., 1929; Documents on the Ownership, 1896-1921;

1884-1929 in Warmbad, Windhoek, Keetmanshoop, Lüderitzbucht, Präses d. Nama-Mission; letters, reports, station reports, annual reports, statistics, 1884-1929; private letters to Inspector Ludwig von Rohden, 1885-1886; in 1.623a pages 19-21 are missing, probably 2 watercolours by Blyde Verwacht u. !Nabis im Gei!from Karl (Carl) Friedrich Wandres, ca. 1887; - Map overview of the sold places between Keetmanshoop and Warmbad, ca. 1888; Report of the elders Johannes Witbooi, Warmbad, about his evangelization journey in the area of the Bondelzwarts, 1889; Orders to Friedrich Kämpfer and Friedrich Schindelin, 1888-1889; Declaration of honour of the captains d. Bondelzwarts for Karl (Carl) Friedrich Wandres, 1891; Report about the sermon journey of two elders of the Warmbad community, 1893; Timetable of the Imperial German Reich Post Keetmanshoop - Steinkopf, 1894; map by !Nabis M. 1: 300 & projected mission station, 1896; private letters to Inspector Johannes Wilhelm Karl Spiecker, 1886-1898; Three visits to Rietfontein (Kalahari desert), essay, 1898; About the use of alcohol in our churches, 16 p. hs, 1898; Roman tissue of lies, 1900; Memorandum on land matters in Windhoek, 1903; Festivities for the inauguration of the Mission Church in Windhoek, May 1903; Native Census of Windhoek, March 1903; 1 copy of a booklet with the name of the church. "German Southwest African Newspaper", No. 2, January 1903; 1 copy "Landeszeitung für Westafrika", No. 112, September 1920; copy of a letter by Hendrik Witbooi, July 1889

see also RMG 1.593,[the typescript bears the note "Archiv Karibib, Rheinische Mission"]; In distant worlds: Letters from a German missionary woman in d. Homeland, covering the years 1863-1903 with interesting descriptions of life at the mission stations Berseba, Keetmannshoop, Windhoek, Warmbad, Komaggas, Southwest Africa, 120 p., ms., no year;

1899-1904 in Keetmanshoop, Warmbad; correspondence and reports; curriculum vitae; letter of the eldest Witbooi in Nabis; request of the church of Warmbad for a new missionary;

Station and annual reports, from 1873; Deputation's reply, from 1874; Protocols of the Nama and Herero Conferences, 1856 and 1858; List of materials, commodities and goods urgently needed from Europe, 1846; Peace Agreement between David Christian, Paul Goliath, Kido Witbooi and Barnabas, deputation to Christian chiefs for rubbish d. Barnabas, 1867; Letter of thanks from Zachäus Isaak, 1868; Lectures on lectures given at the conference, 1869; School and church visitation report from Gibeon, 1871; School and church visitation report from Warmbad, 1871; Request um e. Laden (Winkel) auf Berseba by David Christian, 1871; Johann Georg Krönlein on Missions-Handelsgesellschaft, 12 p. h. hs, 1871; Johannes Olpp on the Missionary Trading Society, 16 p. hs., 1871

1895-1900 in Rietfontein, Warmbad, Pfarramt USA et al. in St. John's Luth Church, Campbell Hill, Ill.; letters and reports, 1895-1900; curriculum vitae, ca. 1890; private letters to inspectors of the RMG, 1895-1900; What can we learn from the Good Samaritan for our mission, paper, 1899; letter about his departure from Mission, 1900; letters from Campbell Hill, Illinois/USA, 1921-1922;

Zeib's tribe, outstations: Katsus, Khoes, Narubis, Seeheim, Spitzkoppe, Farm Keetmannshoop s. RMG 2.551, Orphanage & School Keetmanshoop s. RMG 2.507, Sister Station Aroab s. RMG 2.496; floor plan and view of the building. Station Keetmanshoop, colored drawing, 1888; travel report by Carl Berger with representation of the circumstances on Woermann ships, 1898; annual, semi-annual and conference reports, by missionary Tobias Fenchel, Wilhelm Niemeier, Christi-an Ludwig Kühhirt, Karl Friedrich Wandres u. Friedrich Hermann Gustav Becker, 1903-1926; Visitationsberichte, 1903, 1906 1913; Remarks to the girl sent to South West Africa by the German Women's Federation, July 1910; Request by the community elders and by Adolf Neuhaus (son-in-law of Tobias Fenchel) for Gustav Becker as successor to Tobias Fenchel, 1910; Report on d. Visit of Prof. Mirbt in Keetmanshoop, 1913; Fr. Hans Siebold to Inspector Johannes Wilhelm Karl Spiecker, due to praise for construction technician Johannes Jürgens, 1914; 50th anniversary of the Protestant Mission Keetmanshoop, 14.4.1916, (Dr.)

1907-1923 in Warmbad, Keetmanshoop, Windhoek, Heimatdienst 1923-1927, parish office from 1927; letters and reports, 1907-1946; curriculum vitae, application, recommendation, 1902; examination certificate (copy), 1907; Henriette Fenchel, later Mrs. Becker, to Warneck and Johannes Spiecker, 1909 1910; report on Tobias Fenchel's illness and illness. Death, 1910; Engagement announcement Gustav Becker - Henriette (Henny) Fenchel, 1911; Agreement between the RMG in Barmen and the Evangelische Verein für Innere Mission in Nassau, 1924; Report by Ms Henriette (Henny) Becker "In Memory of my dear husband Gustav Becker", 3 p.., ms, 1948; Obituary for Gustav Becker, 1948; Correspondence with Mrs Henriette (Henny) Becker, 1948-1967; death certificate for Mrs Henriette (Henny) Becker, 1968;